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2 Sheets-Sheet 1.

A. S. TOWLE. COMPOUND METAL WORKING MACHINE;

(No Model.)

Patented July 7, 1885.

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A'BNER S. TOIVLE, OF ROCHESTER, NEIV HAMPSHIRE, ASSIGNOR OF ONE- HALF TO JGHN D. FOGG, OF SAME PLACE.

COMPOUND METAL- WORKING MACHINE.

QFZECIFLC jhTIQ-Ed farming part of Letters Patent No. 321,547, dated July 7, 1835.

Application filed May 6. 1385.

saw-teetli,w11ereby the use and expense of several machines are obviated.

In the accompanying drawings, in which similar letters ofrel'erence indicate like parts, Figure 1 is a front elevation of my improved machine with its parts in position for cutting metal, thehandle being represented as broken out. Fig. 2 is a similar elevation with a portion of the frame represented as removed,showing the parts in position for cutting saw-teeth.

Fig. 3 is a transverse vertical section on line a, Fig. 1. Fig. 4 is a similar section with the parts in the position shown in Fig. 3. Fig. 5 is a detail front elevation with the head and front plate removed. Fig. 6 is a rear elevation of the head removed.

A is the frame, made substantially of the shape shown, the portion A thereof supporting the cutting and punching mechanism, and the portion A supporting the dies.

B isa circular head, and from its periphery project radially punches a, of different sizes, and a cutter, b, for cutting out saw-teeth, said punches and cutter being set into suitable openings in the head, and held in place by set- 5 screws 0; also secured to this head by means of the bolts 6 is the upper of the cutters (Z. This cutter-head B is supported by the projection C,to which it is secured by the boltf, passing through the covering-plate D into said shaft.

0 This projection 0 extends into the central opening,l3, (see Fig. 6,) in the cutter from the sliding block E, whose sides are beveled, in order to prevent it from tipping forward, to correspond with the beveled portion A of the frame on one side and the beveled upright F,

secured to the frame by bolts you the opposite side, so that by removing said upright the sliding block may be taken out. This block is supported by a link, G, hanging from and loose upon the spindle H, eccentrically se- (No model.)

cured to the shaft H, which has its bearingin the frame, and to which partial rotation is adapted to be applied by the handle or lever H, rigidly secured thereto at the rear side of the frame. This mechanism and the chamber in which it is placed are hidden by the front plate, It.

I is a circular die set into a corresponding chamber in the portion A of the frame,and is held in position therein by the bolt 1, which passes horizontally through the frame, and is provided with a nut, I, next the rear side of the frame. This die is provided on its periphery with suitable openings, i, for the accommodation of the punches a and the cutter b, and has likewise secured to it the lower of the cutters d by means of the bolts 0. The openings i extend from the circumference of the die to the central chambercd out portion, J. The head B is provided on its rear side with horizontal openings k, corresponding in number and posit-ion with the punches and cutters a b d, and held normally in said opening by the spring Z is the registering-pin L, provided with a head, L. The die I is provided with similar openings on its rear side, into which springs a similar registering pin.

The operation of the machine is as follows: To use the machine for cutting metal,the screw f and bolt I are slightly loosened, so that the head 13 will not bind upon the projection C, nor the die I bind in its corresponding chamher, and the registering-pin L having been withdrawn from an opening, 7;, sufficiently to allow-free rotary movement of the head, said head is turned upon the projection 0 until the cutter d is in the position shown inFigs. 1 and 3, when the registering-pin drops into the opening 7.: corresponding with said cutter, and prevents said head from rotating. The die I is rotated into the position shown in Figs. 1 and 3 in a similar manner. The screw D and bolt I are then turned up tightly,in order that the head and die may be perfectly rigid, and the upper cutter is brought down upon the metal by depressing the arm or lever H, such arm or lever in its descent partially rotating the shaft Hand causing the eccentric,by means of the link G, to push down the sliding block E, and hence, of course, the head B.

ICO

To change the machine so as to utilize the saw-tooth cutter, the screw f and bolt I are again loosened, the registeringpins withdrawn, and the head and die rotated until they reach the positions shown in Figs. 2 and 4., when the registering-pins drop into the corresponding openings, and said screw and bolt are again tightened.

Suitable gages may be attached to the machine, but as they form no part of the invention they are not illustrated in the drawings.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is

1. The herein-described machine for punching and cutting metal, the same consisting, essentially, of the following parts, viz: the rotary head B, provided with the punchesaand cutters b and d, the registering-pin L, the portion A of the frame, and mechanism for imparting vertical movement to said head, and the rotary die I, provided with the openings 7;, cutter d, and chamber J, and part A of the frame, substantially as and for the purpose set forth.

2. The combination of the frame A A A, head B, provided with the punches and cutters a b d, screw f, sliding block E, having its sides beveled as described, projection O, eccentric G H H, die I, provided with the cutter d, openings 6, and chamber J and the'registering mechanism, arranged and constructed substantially as and for the purpose described.

ABNER S. TOWLE.

Witnesses:

J OSEPH H. VVoRcEs'rER, CHARLES O. PERKINS, CHARLES B. GAFNEY. 

